Not sure you want me to answer this!
I am on day 31 today. Much better than I was but nowhere near recovered (many people recover in a couple of weeks though) so dont panic.
I started with diarrhoea, nausea and loss of appetite.
Then diarrhoea, chills and a sensation of burning skin across my abdomen and arms (this last is quite rare). Also had terrible oral thrush at this point and a sore throat and nasal drip. Extreme fatigue.
Then diarrhoea stopped, or thrush went, sore throat got better but cough started. Still very fatigued, sensation of burning lungs. Some quite (very) scary breathlessness. Burning skin. Fatigue.
These symptoms have continued, but gradually eased, with sore eyes, ears and acid reflux added for fun. Intermittent chills.
Now I have clusters of good days then dip again, but the general direction of travel is up.
If your dd has COVID, or you think she does, then you can support her by making sure she drinks plenty (and I mean litres) and eats something each day, even if just soup or smoothies. Keep a eye on her temp and breathing and keep her comfortable. After that its just matter of waiting it out, but do call 111 or gp if worried.